IIT JEE Practice Question and Answer

Q: An individual deposited 20% of 25% of 30% of what he had into his account with a bank. If he deposited Rs.750, how much was he having initially with him before depositing ? 1644 0

  • 1
    Rs. 38000
    Correct
    Wrong
  • 2
    Rs. 47000
    Correct
    Wrong
  • 3
    Rs. 50000
    Correct
    Wrong
  • 4
    Rs. 35000
    Correct
    Wrong
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Answer : 3. "Rs. 50000"
Explanation :

Answer: C) Rs. 50000 Explanation: Let 'x' be the amount he had in the bank. => 20/100(25/100(30/100(x))) = 750 x = 750 x 8000/120 = Rs. 50000

Q: How long can a beaver hold its breath? 1642 0

  • 1
    15 min
    Correct
    Wrong
  • 2
    25 min
    Correct
    Wrong
  • 3
    35 min
    Correct
    Wrong
  • 4
    55 min
    Correct
    Wrong
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Answer : 1. "15 min"
Explanation :

Answer: A) 15 min Explanation: Beavers Can Hold Their Breath for 15 Minutes Underwater. The behavior of beavers means that they need to be able to remain underwater for several minutes at a time.

Q: The cost price of an article is 54% of the marked price. Calculate the gain percent after allowing a discount of 15%  ? 1642 0

  • 1
    51.32 %
    Correct
    Wrong
  • 2
    49.23 %
    Correct
    Wrong
  • 3
    48.4 %
    Correct
    Wrong
  • 4
    46.8 %
    Correct
    Wrong
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Answer : 3. "48.4 %"
Explanation :

Answer: C) 48.4 % Explanation: Let marked price = Rs. 100. Then, C.P. = RS. 54, S.P. = Rs. 85Gain % = 31/64 x 100 = 48.4%.

Q: 24 S in an IF? 1642 0

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Answer :
Explanation :

24 S in an IF means 24 Spokes in an Indian Flag.

Q: In general, which is the cause of a land breeze? 1642 0

  • 1
    Pressure
    Correct
    Wrong
  • 2
    Heat
    Correct
    Wrong
  • 3
    Temperature
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Temperature"
Explanation :

Answer: C) Temperature Explanation: The land breeze is a coastal breeze at night blowing from the land to the ocean. It is caused by the difference in the rates of cooling of the land and of the ocean. Once again, the bigger the difference in temperature between the two, the stronger the wind.

Q: Anything that has Mass and takes up Space- 1642 0

  • 1
    System
    Correct
    Wrong
  • 2
    Matter
    Correct
    Wrong
  • 3
    Energy
    Correct
    Wrong
  • 4
    Weight
    Correct
    Wrong
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Answer : 2. "Matter"
Explanation :

Answer: B) Matter Explanation: Anything that has Mass and takes up Space is called Matter.   Matter has some mass and occupies some space. Mass means the amount of matter in an object. Space occupied by an object is called its Volume.   The Study of Matter and and how matter changes is called Chemistry.

Q: Who has become world's no.1 Junior Badminton player in 2017 ? 1641 0

  • 1
    Chia Hao Lee
    Correct
    Wrong
  • 2
    Lakshya Sen
    Correct
    Wrong
  • 3
    Chirag Sen
    Correct
    Wrong
  • 4
    Karthikey Gulshan Kumar
    Correct
    Wrong
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Answer : 2. "Lakshya Sen"
Explanation :

Answer: B) Lakshya Sen Explanation: India's Lakshya Sen has become the World No 1 Junior Badminton player. He achieved the distinction in the latest rankings of the Badminton World Federation (BWF). Fifteen-year-old is the first shuttler from Uttarakhand to attain the numero uno spot at the international level. Lakshya, who is considered as the shining future star of Indian badminton, moved ahead of Chia Hao Lee of the Chinese Taipei, to attain the top spot. According to BWF current rankings, Lakshya has 16,903 points in eight tournaments he has played in the season. Chia Hao, who is at the second spot, has 16,091 points.

Q: " Rani ki Vav " an archaeological attraction is located in which of the following states ? 1641 0

  • 1
    Andhra Pradesh
    Correct
    Wrong
  • 2
    Telangana
    Correct
    Wrong
  • 3
    Rajasthan
    Correct
    Wrong
  • 4
    Gujarat
    Correct
    Wrong
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Answer : 4. "Gujarat"
Explanation :

Answer: D) Gujarat Explanation: Rani ki Vav meaning the Queen’s Stepwell is an archaeological site in the state of Gujarat. Beauitfully structured, the site has been included in the list of international heritage sites by UNESCO. With the help of the ambitious project, The Scottish Ten, Rani ki Vav is among the five heritage sites that would be recreated digitally for managment and conservation.

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